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Ranjbar, Niloofar, Baghbani, Hamed. (1405). Aspect-Based Sentiment Analysis in Persian Using a Fine-Tuned LLaMA3 Model. , 13(1), 83-97. doi: 10.22108/jcs.2026.145865.1175
Niloofar Ranjbar; Hamed Baghbani. "Aspect-Based Sentiment Analysis in Persian Using a Fine-Tuned LLaMA3 Model". , 13, 1, 1405, 83-97. doi: 10.22108/jcs.2026.145865.1175
Ranjbar, Niloofar, Baghbani, Hamed. (1405). 'Aspect-Based Sentiment Analysis in Persian Using a Fine-Tuned LLaMA3 Model', , 13(1), pp. 83-97. doi: 10.22108/jcs.2026.145865.1175
Ranjbar, Niloofar, Baghbani, Hamed. Aspect-Based Sentiment Analysis in Persian Using a Fine-Tuned LLaMA3 Model. , 1405; 13(1): 83-97. doi: 10.22108/jcs.2026.145865.1175

Aspect-Based Sentiment Analysis in Persian Using a Fine-Tuned LLaMA3 Model

Journal of Computing and Security
مقاله 7، دوره 13، شماره 1، فروردین 2026، صفحه 83-97    اصل مقاله (854.1 K)
نوع مقاله: Research Article
شناسه دیجیتال (DOI): 10.22108/jcs.2026.145865.1175
نویسندگان
Niloofar Ranjbar* ؛ Hamed Baghbani
Department of Computer Engineering, Jam Faculty of Engineering, Persian Gulf University, Bushehr, Iran.
چکیده
Aspect-Based Sentiment Analysis (ABSA) is less developed for Persian than for English, particularly for extracting complete aspect-category-opinion-sentiment structures rather than classifying sentiment for predefined aspects. This paper presents a generative Persian ABSA framework based on fine-tuned LLaMA3-family instruction models. Given a Persian review, the model generates a JSON array of quadruples containing aspect terms, categories, opinion spans, and sentiment labels.
The training data are drawn from a GPT-3.5-assisted Persian ABSA corpus whose annotations were reviewed and filtered by human annotators; we therefore treat it as GPT-assisted/human-validated rather than purely human-authored. To reduce circular evaluation, we also construct an independent human-only test set from raw Persian reviews. Three annotators manually annotated 240 reviews from scratch, and a two-of-three consensus procedure produced 555 gold aspect-level labels from 239 reviews.
We evaluate zero-shot LLaMA3, fine-tuned LLaMA3 models, and Dorna-LLaMA3-8B-Instruct as a Persian-oriented generative baseline under the same schema, parser, and metrics. On the human-only test set, zero-shot LLaMA3 obtains 0.1426 aspect F1 and 0.1185 aspect-sentiment F1. Fine-tuned LLaMA3-CG improves the five-seed mean scores to 0.5477 0.0229 and 0.4394, 0.0212, while Dorna-CG reaches 0.5809, 0.0123 and 0.4897, 0.0194. Adding ParsiNLU substantially improves in-domain ParsiNLU performance but reduces human-only performance, revealing a domain and annotation-style trade-off.
کلیدواژه‌ها
Aspect-Based Sentiment Analysis؛ Persian Language؛ Sentiment Analysis؛ LLaMA3 Model؛ ChatGPT؛ Natural Language Processing
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مراجع
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